Hello everyone,
I am running wf3 on a Haas vf3ss. I am tapping 5/16 18 threads in 6061 alum. to a depth of 1.190 with a high speed steel, hi spiral flute, 52 degree semi bottoming tap. spindle speed -782 thread feed 18. I have 30 some holes to tap- the tap described above was just what I had at hand , it broke on the 7 th hole.
any suggestions would be appreciated.Is there a rule of thumb for cnc tap depth, ex. 3x diameter, in that case would the rest of the threads be done by hand later?
thanks, randy
can you peck a deep tap, can you set a torque limit for rigid tap?
come on guys, this ain't rocket science, I'd help you if I could..... and will repay in time.
thanks again,randy
Edited by: rrrhaas
I am running wf3 on a Haas vf3ss. I am tapping 5/16 18 threads in 6061 alum. to a depth of 1.190 with a high speed steel, hi spiral flute, 52 degree semi bottoming tap. spindle speed -782 thread feed 18. I have 30 some holes to tap- the tap described above was just what I had at hand , it broke on the 7 th hole.
any suggestions would be appreciated.Is there a rule of thumb for cnc tap depth, ex. 3x diameter, in that case would the rest of the threads be done by hand later?
thanks, randy
can you peck a deep tap, can you set a torque limit for rigid tap?
come on guys, this ain't rocket science, I'd help you if I could..... and will repay in time.
thanks again,randy
Edited by: rrrhaas